Finding the Third Proportional to 1,639,699 and 3,602,223

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639,699 : 3,602,223 = 3,602,223 : x
2. Step 2: Convert to fraction form
   1,639,699/3,602,223 = 3,602,223/x
3. Step 3: Cross multiply
   1,639,699x = 3,602,223 × 3,602,223
4. Step 4: Simplify right side
   1,639,699x = 12,976,010,541,729
5. Step 5: Solve for x
   x = 12,976,010,541,729/1,639,699
6. Step 6: Final answer
   x = 7,913,653.99